Horizontal annealing furnace threading system and threading method

Abstract

The invention belongs to the technical field of strip threading of annealing furnaces, and relates to a strip threading system and a strip threading method of a horizontal annealing furnace. The threading system comprises a threading needle group formed by connecting a plurality of threading needles in series, and a storage device for storing the threading needle group in sections; the threading needle group is arranged at an inlet of the horizontal annealing furnace, and the tail end, far away from the horizontal annealing furnace, of the threading needle group is connected with strip steel; the threading needle group is configured to move from an inlet to an outlet of the horizontal annealing furnace so as to pull strip steel to enter the horizontal annealing furnace; the storage device is arranged at an outlet of the horizontal annealing furnace and comprises a storage cylinder set, and the storage cylinder set comprises a plurality of storage cylinders arranged parallel to the moving path of the threading needle set. The storage barrel set is configured to slide in a reciprocating mode in the direction perpendicular to the moving path of the threading needle set so that different storage barrels can be switched to be aligned with the outlet. The device can adapt to equipment arrangement conditions of different production lines, and particularly for production lines with limited space at an inlet and an outlet of an annealing furnace, can ensure smooth and stable strip threading operation.

Description

Technical Field

[0001] The invention belongs to the technical field of belt threading in an annealing furnace, and relates to a belt threading system and a belt threading method for a horizontal annealing furnace. Background Art

[0002] Horizontal annealing furnace is widely used in continuous annealing unit and is one of the key equipment of the unit. The strip is heated and cooled in it to ensure the performance of the strip. The heating section of the horizontal annealing furnace is usually divided into two forms: full radiation tube heating and open flame direct heating. Taking full radiation tube heating as an example, during formal production, the furnace temperature usually needs to reach about 900°C, and the annealing furnace needs a certain amount of time to heat up from room temperature to the temperature required for normal production. If the strip has entered the annealing furnace during the heating time, there is a risk of the strip breaking. In order to avoid the occurrence of strip breaking, the operating speed of the production line needs to be greatly reduced to leave enough heating time for the annealing furnace.

[0003] However, slow production line operation will lead to an increase in scrap volume. To avoid this, the current practice is to first raise the furnace temperature to about 600°C and then perform hot threading. During the threading process, the strip steel is transferred from the production line entrance and exit respectively and welded into a whole at the zinc pot. After threading, the production line runs at a low speed and the annealing furnace quickly heats up to the specified temperature. As the furnace temperature rises, the production line gradually speeds up until the annealing temperature of the strip steel is reached and normal production begins. This operating process ensures the safety of the strip steel during the heating process of the annealing furnace, and also provides a guarantee for subsequent continuous production.

[0004] The strip is threaded through a threading rod or a threading needle. When the production starts or the strip needs to be rethreaded due to a broken strip, one end of the wire rope is first tied to the threading rod or the threading needle, and the other end is tied to the end of the strip. At the same time, a conveyor roller is set at the entrance of the annealing furnace, and the threading rod or the threading needle is put on the conveyor roller, and the threading needle is sent into the annealing furnace through the conveyor roller, and then the strip is pulled into the furnace and the threading is finally completed. The traditional threading rod or threading needle is a long rod forged or welded from a steel section. In order to meet the needs of threading, the threading needle is usually long (at least 10m), which is not easy to hoist and occupies a large area. If there is not enough space at the entrance or exit of the horizontal annealing furnace, the threading operation cannot be carried out smoothly, which affects the production efficiency. Summary of the invention

[0005] In view of this, an object of the present invention is to provide a horizontal annealing furnace belt threading system and belt threading method to adapt to the equipment layout of different production lines, especially for production lines with limited space at the entrance and exit of the annealing furnace, to ensure that the belt threading operation is smooth and stable.

[0006] In a first aspect, the present invention provides a horizontal annealing furnace tape threading system, comprising a tape threading needle group formed by a plurality of tape threading needles connected in series, and a storage device for storing the tape threading needle group in sections; the tape threading needle group is arranged at the entrance of the horizontal annealing furnace, and is connected to the strip steel at the rearmost end away from the horizontal annealing furnace; the tape threading needle group is configured to move from the entrance to the exit of the horizontal annealing furnace to pull the strip steel into the horizontal annealing furnace; the storage device is arranged at the exit of the horizontal annealing furnace and is located on the horizontal plane where the exit is located, and comprises a storage cylinder group, the storage cylinder group comprises a plurality of storage cylinders arranged parallel to the moving path of the tape threading needle group; the storage cylinder group is configured to slide back and forth in a direction perpendicular to the moving path of the tape threading needle group to switch different storage cylinders to align with the exit.

[0007] Optionally, a plurality of sliding wheels are spaced apart on the inner wall of the bottom surface of each storage tube in the length direction of the storage tube, and the threading needle is driven to move in the storage tube by rotating the sliding wheels.

[0008] Optionally, a plurality of connecting plates are arranged at intervals along the length direction of the storage tube, the connecting plates are all fixed on the top surface of the storage tube, and the plurality of storage tubes are connected to form a whole through the connecting plates.

[0009] Optionally, one end of the storage cylinder group close to the horizontal annealing furnace is arranged on a base, and the base is configured to reciprocate along the width direction of the storage cylinder.

[0010] Optionally, the sliding sleeve is inserted into the base, and the base and the storage tube thereon are driven to move by the sliding sleeve.

[0011] Optionally, the sliding rod is inserted into the sliding sleeve and cooperates with the inner wall thread of the sliding sleeve; the sliding rod passes through the two ends of the sliding sleeve along the width direction of the storage tube, and the sliding sleeve is driven to move by rotating the sliding rod.

[0012] Optionally, the first support frame is arranged near the exit of the horizontal annealing furnace for carrying the storage tube group; the base is slidably arranged on the surface of the first support frame.

[0013] Optionally, along the width direction of the storage cylinder, a plurality of collinearly arranged positioning holes are provided on the surface of the first support frame, and connecting ears are provided on both sides of the base, and the connecting ears are located on the straight line where the plurality of positioning holes are located; the storage device fixing rod passes through the connecting ears and enters at least one positioning hole to fix the storage cylinder group on the first support frame after the storage cylinder group is moved.

[0014] Optionally, it also includes a threading needle fixing rod, which is slidably inserted into the storage tube group in a manner of penetrating a single or multiple storage tubes, and is located at one end of the storage tube group close to the horizontal annealing furnace.

[0015] Optionally, a walking mechanism is provided at the bottom of the storage cylinder group, and a push rod is provided at the top of the storage cylinder group.

[0016] Optionally, a lifting lug is provided in the middle section of the storage cylinder group, one end of the tensioning rope is connected to the lifting lug, and the other end is connected to one end of the storage cylinder group; a counterweight block is provided at the other end of the storage cylinder group.

[0017] Optionally, a rope pulley is provided at one end of the storage drum group away from the horizontal annealing furnace, and a plurality of sliding wheels are connected by a steel wire rope, which is wound around the rope pulley.

[0018] Optionally, a plurality of tape threading needles are connected via a connecting pin, a furnace front roller flush with the entrance height is provided in front of the entrance of the horizontal annealing furnace, and each tape threading needle is placed on the furnace front roller via a lifting rope.

[0019] Optionally, at least one positioning pin is slidably provided on each storage tube; the positioning pin is arranged at the head end and / or the tail end of each tape threading needle to fix the position of each tape threading needle in the storage tube.

[0020] In a second aspect, the present invention further provides a horizontal annealing furnace belt threading method, which is applied to the above-mentioned horizontal annealing furnace belt threading system, comprising the following steps:

[0021] Determine the length and quantity of the tape threading needle and the storage tube according to the space in front of and behind the horizontal annealing furnace;

[0022] When the horizontal annealing furnace is heated to 600°C, multiple threading needles are connected in series to form a threading needle group in front of the entrance of the horizontal annealing furnace, and the strip is assembled at the end of the threading needle group;

[0023] Start the tape threading process, and the tape threading needle group enters the horizontal annealing furnace;

[0024] The first section of the tape threading needle passes through the outlet and enters one of the storage cylinders of the storage cylinder group, driving the first section of the tape threading needle to move toward the end of the current storage cylinder away from the horizontal annealing furnace;

[0025] When the first threading needle is completely inserted, disconnect it from the second threading needle;

[0026] Slide the storage cylinder group to align the other storage cylinders with the outlet of the horizontal annealing furnace, the second section of the tape threading needle passes through the outlet and enters the other storage cylinders, and drives the second section of the tape threading needle to move toward the end of the current storage cylinder away from the horizontal annealing furnace;

[0027] Repeat the above operation until all the threading needles are inserted into the corresponding storage cylinders, fix the positions of the storage cylinder group and the threading needles, and then move the storage cylinder group as a whole to the specified position to complete the threading work.

[0028] The beneficial effects of the present invention are:

[0029] The present invention provides a horizontal annealing furnace tape threading system and tape threading method with strong adaptability and convenient operation. By adopting a tape threading needle group formed by multiple tape threading needles connected in series and a storage device for storing the tape threading needle group in sections, the tape threading system can adapt to the equipment layout of different production lines, especially for the entrance and exit of the annealing furnace with limited space, ensuring smooth and stable tape threading operation.

[0030] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and to some extent, will be obvious to those skilled in the art based on the following examination and study, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be described in detail below in conjunction with the accompanying drawings, wherein:

[0032] Figure 1 A schematic structural diagram of a belt threading system for a horizontal annealing furnace provided by the present invention;

[0033] Figure 2 A front view of a storage device for a belt threading system of a horizontal annealing furnace provided by the present invention;

[0034] Figure 3 A top view of a storage device for a belt threading system of a horizontal annealing furnace provided by the present invention;

[0035] Figure 4 A side view in the direction of A of a storage device of a belt threading system of a horizontal annealing furnace provided by the present invention.

[0036] Reference numerals:

[0037] 1-threading needle section 1, 2-threading needle section 2, 3-connecting pin, 4-transmission roller in furnace, 5-sliding wheel, 6-first support frame, 7-first steel structure platform, 8-second steel structure platform, 9-second support frame, 10-ropes, 11-wire ropes, 12-furnace front rollers, 13-push rods, 14-lifting ears, 15-tensioning ropes, 16-lifting ropes, 17-first storage cylinder, 18-second storage cylinder, 19-counterweights, 20-first positioning pins, 21-second positioning pins, 22-travel mechanism, 23-connecting plate, 24-first positioning holes, 25-second positioning holes, 26-third positioning holes, 27-sliding rods, 28-sliding sleeves, 29-threading needle fixing rods, 30-storage device fixing rods, 31-base. DETAILED DESCRIPTION

[0038] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner, and the following embodiments and features in the embodiments can be combined with each other without conflict.

[0039] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on the present invention. In order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of actual products. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0040] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "front", "rear", etc. indicate the orientation or position relationship, they are based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0041] Horizontal annealing furnace is widely used in continuous annealing unit and is one of the key equipment of the unit. The strip is heated and cooled in it to ensure the performance of the strip. In order to avoid the occurrence of strip breakage and provide sufficient heating time for the horizontal annealing furnace without significantly reducing the running speed of the production line, the furnace temperature is usually raised to about 600℃, and then the hot strip threading operation is performed. The strip threading is achieved by a threading rod or a threading needle. First, one end of the wire rope is tied to the threading rod or the threading needle, and the other end is tied to the end of the strip. The strip is pulled into the annealing furnace through the threading needle. The traditional threading rod or threading needle is relatively long (at least 10m). If there is not enough space at the entrance or exit of the horizontal annealing furnace, the strip threading operation cannot be carried out smoothly, which affects production efficiency.

[0042] like Figure 1 to Figure 4 The invention provides a tape threading system for a horizontal annealing furnace, wherein the tape threading system comprises a tape threading needle group formed by a plurality of tape threading needles connected in series, and a storage device for storing the tape threading needle group in sections.

[0043] The threading needle group is arranged at the entrance of the horizontal annealing furnace, and is connected to the strip steel at the end far away from the horizontal annealing furnace; the threading needle group is configured to move from the entrance to the exit of the horizontal annealing furnace to pull the strip steel into the horizontal annealing furnace. In this embodiment, the threading needle group includes two detachable threading needles connected in series, namely, threading needle section 1 and threading needle section 2. Threading needle section 1 and threading needle section 2 are connected by a connecting pin 3, and threading needle section 1 is connected to the strip steel by a chain. Further, a furnace front roller 12 flush with the entrance height is arranged in front of the entrance of the horizontal annealing furnace, and a furnace drive roller 4 is arranged in the horizontal annealing furnace. Threading needle section 1 and threading needle section 2 are placed on the furnace front roller 12 through a hoisting rope 16, and move from the entrance to the exit of the horizontal annealing furnace under the action of the furnace drive roller 4, thereby pulling the strip steel into the horizontal annealing furnace.

[0044] In some optional embodiments, the horizontal annealing furnace is disposed on a first steel structure platform 7, which is used to support various equipment in front of the horizontal annealing furnace, and the front rollers 12 are fixed to the first steel structure platform 7 by bolts.

[0045] The storage device is arranged at the exit of the horizontal annealing furnace and is located on the horizontal plane where the exit is located, and includes a storage cylinder group, and the storage cylinder group includes a plurality of storage cylinders arranged parallel to the moving path of the tape threading needle group. The storage cylinder group is configured to slide back and forth in a direction perpendicular to the moving path of the tape threading needle group to switch different storage cylinders to align with the exit. It can be understood that the length direction of the storage cylinder is parallel to the moving path of the tape threading needle group, and the width direction of the storage cylinder is perpendicular to the moving path of the tape threading needle group.

[0046] In this embodiment, the storage tube group includes two storage tubes arranged in parallel, namely, a first storage tube 17 and a second storage tube 18. A plurality of connecting plates 23 are arranged at intervals along the length direction of the storage tubes, and each connecting plate 23 is welded to the top surface of the first storage tube 17 and the second storage tube 18 so that the two become a whole. It can be understood that the projection of the connecting plate 23 on the top surface of the first storage tube 17 and the second storage tube 18 is simultaneously located within the range of the top surface of the first storage tube 17 and the second storage tube 18, so that the first storage tube 17 and the second storage tube 18 can be moved synchronously.

[0047] Furthermore, the first storage tube 17 and the second storage tube 18 are fixedly mounted on the base 31 at one end close to the horizontal annealing furnace, and the sliding sleeve 28 is inserted into the base 31, and the sliding sleeve 28 can move along the width direction of the storage tube. The sliding rod 27 is inserted into the sliding sleeve 28 and passes through the two ends of the sliding sleeve 28 along the width direction of the storage tube. The sliding rod 27 is threadedly engaged with the inner wall of the sliding sleeve 28, and the sliding sleeve 28 is driven to move by rotating the sliding rod 27, thereby driving the base 31 and the storage tube thereon to move.

[0048] Furthermore, the tape threading system is mounted on the first steel structure platform 7 and the second steel structure platform 8. Specifically, the horizontal annealing furnace and the furnace front rollers 12 are arranged on the first steel structure platform 7, and the storage device is arranged on the second steel structure platform 8. The first support frame 6 is near the outlet of the horizontal annealing furnace and is located on the first steel structure platform 7, and the second support frame 9 is arranged on the second steel structure platform 8. One end of the storage device close to the horizontal annealing furnace is placed on the first support frame 6, and the other end away from the horizontal annealing furnace is placed on the second support frame 9. The base 31 of the storage device is slidably arranged on the surface of the first support frame 6. Driven by the sliding sleeve 28, the base 31 slides along the width direction of the storage tube to switch the first storage tube 17 or the second storage tube 18 to align with the outlet of the horizontal annealing furnace, so as to store different tape threading needles in different storage tubes.

[0049] Along the length direction of the storage cylinder, the inner walls of the bottom surfaces of the first storage cylinder 17 and the second storage cylinder 18 are spaced apart with a plurality of sliding wheels 5. After the tape threading needle enters the first storage cylinder 17 and the second storage cylinder 18, it is placed on the sliding wheel 5 and moves forward driven by the rotation of the sliding wheel 5. A rope pulley 10 is provided at one end of the storage cylinder group away from the horizontal annealing furnace. The plurality of sliding wheels 5 are connected by a steel wire rope 11, and the steel wire rope 11 is wound on the rope pulley 10. When the tape threading needle section 1 or the tape threading needle section 2 runs to the exit of the horizontal annealing furnace, the operator pulls the steel wire rope 11 at the second steel structure platform 8 to drive each sliding wheel 5 to rotate. The tape threading needle section 1 or the tape threading needle section 2 enters the corresponding storage cylinder by inertia and moves further forward driven by the sliding wheel 5.

[0050] In some optional embodiments, along the width direction of the storage cylinder, the surface of the first support frame 6 is provided with a plurality of collinearly arranged positioning holes, and connecting ears are respectively provided on both sides of the base 31, and the connecting ears are located on the straight line where the plurality of positioning holes are located; the storage device fixing rod 30 passes through the connecting ears and enters at least one of the plurality of positioning holes to fix the position of the storage cylinder group on the first support frame 6 after the storage cylinder group is moved. In this embodiment, the number of positioning holes is three, namely the first positioning hole 24, the second positioning hole 25 and the third positioning hole 26.

[0051] When the storage cylinder group is in the first position, the first storage cylinder 17 is aligned with the outlet of the horizontal annealing furnace. The storage device fixing rod 30 passes through the connecting ear and enters the first positioning hole 24 or the second positioning hole 25 (or two storage device fixing rods 30 are used to penetrate the first positioning hole 24 and the second positioning hole 25 respectively) to keep the storage cylinder group in the first position, so that the second section of the threading needle 2 can smoothly enter the first storage cylinder 17.

[0052] When the second section of the tape threading needle 2 completely leaves the outlet of the horizontal annealing furnace, disconnect the connecting pin 3 between the second section of the tape threading needle 2 and the first section of the tape threading needle 1, remove the storage device fixing rod 30, and drive the sliding rod 27 to move the storage cylinder group to the second position so that the second storage cylinder 18 is aligned with the outlet of the horizontal annealing furnace. The storage device fixing rod 30 passes through the connecting ear and enters the second positioning hole 25 or the third positioning hole 26 (or two storage device fixing rods 30 are used to penetrate the second positioning hole 25 and the third positioning hole 26 respectively) to keep the storage cylinder group in the second position so that the first section of the tape threading needle 1 can smoothly enter the second storage cylinder 18.

[0053] Furthermore, when both the first section 1 and the second section 2 of the tape threading needle enter the storage tube, they move to the designated positions in the second storage tube 18 and the first storage tube 17 under the action of the sliding wheel 5. A plurality of positioning pins are slidably arranged on the first storage tube 17 and the second storage tube 18. The positions of the positioning pins on the first storage tube 17 and the second storage tube 18 are related to the position of the tape threading needle in the storage tube, and are specifically located at the head end or the tail end of the tape threading needle (or at the head end and the tail end of the tape threading needle at the same time) to fix the position of the tape threading needle in the storage tube. In this embodiment, the positioning pins include a first section positioning pin 20 and a second section positioning pin 21. The first section positioning pin 20 is inserted into the first storage tube 17 and is located at the head end of the second section 2 of the tape threading needle (i.e., the end away from the horizontal annealing furnace); the second section positioning pin 21 is inserted into the second storage tube 18 and is located at the head end of the first section 1 of the tape threading needle (i.e., the end away from the horizontal annealing furnace).

[0054] Furthermore, the threading needle fixing rod 29 is slidably arranged along the width direction of the storage cylinder and penetrated at one end of the storage cylinder group near the horizontal annealing furnace to penetrate the cross section of a single or multiple storage cylinders. In some optional embodiments, after all the threading needles enter the storage cylinder, the threading needle fixing rod 29 penetrates all the storage cylinders to prevent the threading needles from escaping from the storage device during transportation or movement of the storage device. In some optional embodiments, during the switching process of the storage cylinder, the threading needle fixing rod 29 may also only penetrate a single storage cylinder to prevent the threading needle from entering the wrong storage cylinder.

[0055] A walking mechanism 22 is provided at the bottom of the storage cylinder group, and a push rod 13 is provided at the top of the storage cylinder group. A lifting lug 14 is provided in the middle section of the storage cylinder group, one end of the tensioning rope 15 is connected to the lifting lug 14, and the other end is connected to one end of the storage cylinder group; a counterweight 19 is provided at the other end of the storage cylinder group. When all the threading needles enter the corresponding storage cylinders and are fixed in their positions in the storage cylinders, the storage device is hoisted as a whole on the workshop floor through the lifting lug 14 and the tensioning rope 15, and the counterweight 19 can prevent the storage device from losing balance during the hoisting process. After the storage device is placed on the workshop floor, the operator pushes the storage device as a whole to a suitable position through the push rod 13, and thus the hot threading operation is completely completed.

[0056] Based on the above-mentioned horizontal annealing furnace belt threading system, an embodiment of the present invention further provides a horizontal annealing furnace belt threading method, which specifically includes the following steps:

[0057] Step S1: Determine the length and quantity of the tape threading needle and the storage cylinder according to the space in front of the horizontal annealing furnace and the space behind the furnace. In this embodiment, two tape threading needles are included, namely, the first tape threading needle section 1 and the second tape threading needle section 2; two storage cylinders are included, namely, the first storage cylinder 17 and the second storage cylinder 18; the lengths of the first storage cylinder 17 and the second storage cylinder 18 match the lengths of the second tape threading needle section 2 and the first tape threading needle section 1;

[0058] Step S2: When the horizontal annealing furnace is heated to 600° C., the first section 1 and the second section 2 of the tape threading needle are connected in series before the entrance of the horizontal annealing furnace, and the strip steel is assembled at the rear end of the first section 1 of the tape threading needle;

[0059] Step S3: starting the driving roller 4 in the furnace, and the second-stage threading needle 2 drives the first-stage threading needle 1 to slowly enter the horizontal annealing furnace;

[0060] Step S4: the first section of the tape threading needle (the second section of the tape threading needle 2 in this embodiment) passes through the outlet and enters the first storage cylinder 17 of the storage cylinder group, and the operator drives the sliding wheel 5 to move the second section of the tape threading needle 2 in the first storage cylinder 17 toward the end away from the horizontal annealing furnace;

[0061] Step S5: After the second section 2 of the tape threading needle is completely inserted, disconnect it from the second section of the tape threading needle (the first section 1 of the tape threading needle in this embodiment);

[0062] Step S6: Slide the storage cylinder group so that the second storage cylinder 18 is aligned with the outlet of the horizontal annealing furnace, and the tape threading needle section 1 passes through the outlet and enters the second storage cylinder 18, and the tape threading needle section 1 is driven to move in the second storage cylinder 18 toward the end away from the horizontal annealing furnace;

[0063] Step S7: All the tape threading needles are placed in the corresponding storage cylinders, the positions of the storage cylinder group and the tape threading needles are fixed, and then the storage device is moved as a whole to a specified position to complete the tape threading work.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the present invention.

Claims

1. A belt threading system for a horizontal annealing furnace, characterized in that: It comprises a tape threading needle group formed by a plurality of tape threading needles connected in series, and a storage device for storing the tape threading needle group in sections; The strip-threading needle group is arranged at the entrance of the horizontal annealing furnace, and is connected to the strip steel at the rear end far away from the horizontal annealing furnace; the strip-threading needle group is configured to move from the entrance to the exit of the horizontal annealing furnace to pull the strip steel into the horizontal annealing furnace; The storage device is arranged at the outlet of the horizontal annealing furnace and is located on the horizontal plane where the outlet is located, and includes a storage cylinder group, and the storage cylinder group includes a plurality of storage cylinders (; The storage cylinder assembly is configured to slide back and forth in a direction perpendicular to a moving path of the threading needle assembly to switch between different storage cylinders and the outlet.

2. The horizontal annealing furnace belt threading system according to claim 1, characterized in that: Along the length direction of the storage tube, a plurality of sliding wheels (5) are arranged at intervals on the inner wall of the bottom surface of each storage tube, and the threading needle is driven to move in the storage tube by the rotation of the sliding wheels (5).

3. The horizontal annealing furnace belt threading system according to claim 1, characterized in that: A plurality of connecting plates (23) are arranged at intervals along the length direction of the storage tube, the connecting plates (23) are all fixedly arranged on the top surface of the storage tube, and the plurality of storage tubes are connected to form a whole through the connecting plates (23).

4. The belt threading system for a horizontal annealing furnace according to claim 1, characterized in that: One end of the storage cylinder group close to the horizontal annealing furnace is arranged on a base (31), and the base (31) is configured to reciprocate along the width direction of the storage cylinder.

5. The belt threading system for a horizontal annealing furnace according to claim 4, characterized in that: The sliding sleeve (28) is inserted into the base (31), and the base (31) and the storage tube thereon are driven to move by the sliding sleeve (28).

6. The belt threading system for a horizontal annealing furnace according to claim 5, characterized in that: The sliding rod (27) is inserted into the sliding sleeve (28) and is threadably matched with the inner wall of the sliding sleeve (28); the sliding rod (27) passes through the two ends of the sliding sleeve (28) along the width direction of the storage tube, and the sliding sleeve (28) is driven to move by rotating the sliding rod (27).

7. The belt threading system for a horizontal annealing furnace according to claim 5, characterized in that: The first support frame (6) is arranged near the outlet of the horizontal annealing furnace and is used to carry the storage cylinder group; the base (31) is slidably arranged on the surface of the first support frame (6).

8. The belt threading system for a horizontal annealing furnace according to claim 7, characterized in that: Along the width direction of the storage tube, the surface of the first support frame (6) is provided with a plurality of colinearly arranged positioning holes; connecting ears are respectively provided on both sides of the base (31), and the connecting ears are located on the straight line where the plurality of positioning holes are located; A storage device fixing rod (30) passes through the connection ear and enters at least one of the positioning holes, so as to fix the storage cylinder group on the first support frame (6) after the storage cylinder group has been moved.

9. The horizontal annealing furnace belt threading system according to claim 1, characterized in that: It also includes a threading needle fixing rod (29), which is slidably installed in the storage tube group in a manner of penetrating a single or multiple storage tubes, and is located at one end of the storage tube group close to the horizontal annealing furnace.

10. The belt threading system for a horizontal annealing furnace according to claim 1, characterized in that: A walking mechanism (22) is provided at the bottom of the storage cylinder group, and a push rod (13) is provided at the top of the storage cylinder group.

11. The belt threading system for a horizontal annealing furnace according to claim 1, characterized in that: A lifting lug (14) is provided in the middle section of the storage cylinder group; one end of a tension rope (15) is connected to the lifting lug (14) and the other end is connected to one end of the storage cylinder group; a counterweight block (19) is provided at the other end of the storage cylinder group.

12. The horizontal annealing furnace belt threading system according to claim 2, characterized in that: A rope pulley (10) is provided at one end of the storage drum group away from the horizontal annealing furnace, and the plurality of sliding wheels (5) are connected by a steel wire rope (11), and the steel wire rope (11) is wound on the rope pulley (10).

13. According to the horizontal annealing furnace tape threading system of claim 1, a plurality of tape threading needles are connected by connecting pins (3), a furnace front roller (12) flush with the entrance height is provided in front of the entrance of the horizontal annealing furnace, and the tape threading needle is placed on the furnace front roller (12) by a lifting rope (16).

14. The horizontal annealing furnace belt threading system according to claim 1, characterized in that: At least one positioning pin is slidably provided on each of the storage tubes; the positioning pin is arranged at the head end and / or the tail end of each tape threading needle to fix the position of each tape threading needle in the storage tube.

15. A horizontal annealing furnace belt threading method, applied to the horizontal annealing furnace belt threading system according to claim 1, characterized in that: Determine the length and quantity of the tape threading needle and the storage tube according to the space in front of and behind the horizontal annealing furnace; When the horizontal annealing furnace is heated to 600° C., a plurality of strip-threading needles are connected in series to form a strip-threading needle group in front of the entrance of the horizontal annealing furnace, and the strip steel is assembled at the rear end of the strip-threading needle group; Starting the tape threading process, and the tape threading needle group enters the horizontal annealing furnace; The first section of the tape threading needle passes through the outlet and enters one of the storage cylinders of the storage cylinder group, driving the first section of the tape threading needle to move toward an end of the current storage cylinder away from the horizontal annealing furnace; When the first section of the tape threading needle is completely inserted, disconnecting it from the second section of the tape threading needle; Slide the storage cylinder group so that the other storage cylinders are aligned with the outlet of the horizontal annealing furnace, the second section of the tape threading needle passes through the outlet and enters the other storage cylinders, and drives the second section of the tape threading needle to move toward the end of the current storage cylinder away from the horizontal annealing furnace; Repeat the above operation until all the threading needles enter the corresponding storage cylinders, fix the positions of the storage cylinder group and the threading needles, and then move the storage cylinder group as a whole to the specified position to complete the threading work.

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